Oops, it doesn't look like 'bring a friend day' is a national day..

Other days

girl friend

Girl Friend Day
lumpy rug

Lumpy Rug Day
brow

Brow Day
ruby

Ruby Day
lost sock memorial

Lost Sock Memorial Day
bow tie

Bow Tie Day
comfy

Comfy Day
bubble bath

Bubble Bath Day
one

One Day
healing

Healing Day